System Log showing error: kex_exchange_identification: Connection closed by

[notrox]

I'm trying to track down why my system log is being flooded with "error: kex_exchange_identification: Connection closed by remote host" followed by "Connection closed by 10.10.0.79 port *random port number*" every 15 minutes.

10.10.0.79 is the Lan IP address of the OPNSense system.

Not sure if there is any correlation, but I am seeing similar "error: kex_exchange_identification: Connection closed by remote host" errors on my TrueNas server every 15 minutes as well.